Why does the rear camera of the Xiaomi 14T fog up?

Fogging of the rear camera can occur due to temperature changes, humidity, or moisture getting trapped inside the camera module. The Xiaomi 14T has an IP68 rating, however, it is not a vacuum device, allowing gas exchange between the inside and outside. Rapid temperature changes can cause condensation on the lens. If fogging occurs, it will dissipate in a normal room-temperature environment in a period of time. If you need to use the camera immediately, you can warm the lens with your palm. If it doesn't clear up after some time, please contact the local after-sales service center for assistance. This phenomenon is similar to glasses fogging up when moving from cold to warm environments.